U.S. Sen. John Hickenlooper’s reelection campaign raised over $1.1 million in the fourth quarter of 2025 and finished the year with more than $3.8 million in the bank, the Colorado Democrat’s campaign said Thursday.

The fundraising haul brings Hickenlooper’s total receipts to nearly $7.6 million since the former two-term governor ousted a Republican incumbent in 2020, with contributions from residents of each of Colorado’s 64 counties, his campaign noted.

He’s the only statewide candidate to raise over $1 million in each of last year’s reporting periods, and almost 80% of his donations were for $25 or less, his campaign added.

Hickenlooper faces primary challenges from several Democrats, led by state Sen. Julie Gonzales, D-Denver, who launched her campaign in December and has yet to report fundraising totals. Five Republicans are also running for the seat, though none has reported raising more than a low six-figure total so far.

Fundraising reports for the fourth quarter are due to the Federal Election Commission by Jan. 31.

Hickenlooper’s total haul is in addition to $100,000 he transferred to the Colorado Democratic Party in October to support the party’s organizing efforts, which was raised through other fundraising entities he controls.

“American science, our democracy, and our public lands are under attack. Coloradans know we’re strongest when we’re united, pushing back against this administration’s cruel agenda,” Hickenlooper said in a statement. “We’re proud to draw on their support to keep fighting together.”

Hickenlooper’s fundraising slowed a bit in the final three months of the year, after his campaign pulled in $1.5 million and $1.7 million in the second and third quarters, respectively. He raised just over $1 million in the first quarter.

While he boasts a formidable archest, Hickenlooper enters the election year with less money on hand than the state’s incumbent U.S senators reported at the end of the year before the election the two previous times Colorado’s seats were on the ballot.

Ahead of his successful 2022 run for a third term, Democratic U.S. Sen. Michael Bennet reported more than $4.7 million in the bank at the end of 2021, and Republican U.S. Sen. Cory Gardner, who lost his bid for reelection to Hickenlooper, had more than $7.7 million to spend at the beginning of the 2020 election year.

Unlike Hickenlooper this cycle, however, both Bennet and Gardner faced challengers who had already raked in millions of dollars ahead of races that were considered competitive.

Colorado’s 2026 Senate race is rated by nonpartisan election forecasters as a safe hold for the Democrats, who have run the table in every statewide election since 2018.

In addition to Gonzales, Hickenlooper is facing a primary challenge from Democrat Karen Breslin, an attorney and university professor who ran against Bennet in the 2022 primary but failed to make the ballot.

The five Republicans running are state Sen. Mark Baisley, R-Woodland Park, who switched to the Senate primary from the gubernatorial race earlier this month; George Markert, a retired Marine colonel making his first run for office; former state Rep. Janak Joshi, R-Colorado Springs, who made an unsuccessful run for a U.S. House seat in 2024; Montrose County Commissioner Sean Pond; and Dathan Jones, the acting chair of the Alamosa County GOP.

Colorado’s Democratic and Republican candidates can qualify for the June primary ballot via the assembly process, which kicks off with precinct caucuses in the first week of March, or by submitting the required number of signatures on petitions.